Subtract 3/30 from 3/12
3/12 - 3/30 is 3/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
3/12 = 3 × 5/12 × 5 = 15/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
3/30 = 3 × 2/30 × 2 = 6/60 - Subtract the two like fractions:
15/60 - 6/60 = 15 - 6/60 = 9/60 - After reducing the fraction, the answer is 3/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/12-3/30 3/12-6/30 3/24-3/30 3/12-3/60 9/12-3/30 3/12-9/30 3/36-3/30 3/12-3/90 15/12-3/30 3/12-15/30 3/60-3/30 21/12-3/30 3/12-21/30 3/84-3/30